BEagle you are splitting hairs. The RAT was outside the port wing at the time. The electrical controls and circuitry are inboard. While the RAT caused the fire it does not follow that the fire started at the RAT but by the RAT.
We once had a similar RAT problem. It fell out at 350k/500ft over the Libyan desert. Things went suddenly dark and quiet as loads were shed.
We recovered to Akrotiri and changed the fuses in, IIRC, the nose wheel bay.